/* roulang page: index */
:root{
  --bg:#060A14;
  --panel:#0C1424;
  --primary:#1FA2FF;
  --accent:#46E0FF;
  --violet:#6D4BFF;
  --gold:#E8B24A;
  --text:#E8EEF7;
  --muted:#9FB0C7;
  --dim:#6B7C93;
  --glass:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.09);
  --radius:16px;
  --glow:0 8px 28px -6px rgba(31,162,255,.55);
  --shadow:0 24px 60px -30px rgba(0,0,0,.9);
  --ok:#2FD08A;
  --warn:#FF7A59;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Inter','PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(31,162,255,.35);}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
.section{padding:104px 0;position:relative;}
.section-alt{background:linear-gradient(180deg,rgba(12,20,36,.65),rgba(6,10,20,0));}
.section-head{max-width:760px;margin-bottom:56px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.02em;color:var(--accent);
  border:1px solid rgba(70,224,255,.32);background:rgba(31,162,255,.08);
  padding:5px 14px;border-radius:999px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);}
.section-title{font-size:clamp(24px,3.2vw,40px);font-weight:700;line-height:1.25;letter-spacing:0;}
.section-desc{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.75;max-width:680px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:600;font-size:15px;
  padding:13px 28px;transition:all .2s ease-out;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--violet));
  color:#fff;box-shadow:var(--glow);border:1px solid rgba(255,255,255,.08);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px -6px rgba(31,162,255,.8),0 0 0 1px rgba(70,224,255,.6);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px -8px rgba(31,162,255,.7);}
.btn-ghost{
  border:1px solid rgba(31,162,255,.65);color:var(--accent);background:rgba(31,162,255,.04);
}
.btn-ghost:hover{background:rgba(31,162,255,.12);border-color:var(--accent);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:600;font-size:14px;}
.btn-link::after{content:"→";transition:transform .2s ease-out;}
.btn-link:hover::after{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  padding:18px 0;transition:background .2s ease-out,padding .2s ease-out,border-color .2s ease-out,backdrop-filter .2s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.85);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom-color:var(--line);padding:12px 0;
}
.header-inner{display:flex;align-items:center;gap:24px;}
.brand{display:inline-flex;align-items:baseline;gap:2px;font-size:22px;height:30px;letter-spacing:.01em;}
.brand-mark{font-weight:800;color:var(--primary);text-shadow:0 0 18px rgba(70,224,255,.65);}
.brand-text{font-weight:500;color:var(--text);}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1;}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);padding:9px 13px;border-radius:8px;
  transition:color .2s ease-out,background .2s ease-out;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(70,224,255,.8);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;background:rgba(6,10,20,.96);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out;
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-mask{position:absolute;inset:0;}
.drawer-panel{position:relative;z-index:2;padding:24px 20px 40px;display:flex;flex-direction:column;height:100%;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:20px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;flex:1;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 4px;font-size:18px;font-weight:500;color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.drawer-nav a::after{content:"›";color:var(--dim);font-size:20px;}
.drawer-nav a.is-active{color:var(--accent);}
.drawer-cta{margin-top:24px;}

/* ============ Hero ============ */
.hero{
  position:relative;display:flex;align-items:center;overflow:hidden;
  min-height:640px;height:min(88vh,760px);padding:120px 0 72px;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(6,10,20,.55) 0%,rgba(6,10,20,.82) 55%,rgba(6,10,20,.96) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero-glow{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;}
.hero-glow.g1{width:420px;height:420px;left:-120px;top:8%;background:rgba(109,75,255,.35);}
.hero-glow.g2{width:380px;height:380px;right:-80px;bottom:-100px;background:rgba(31,162,255,.28);}
.hero-inner{position:relative;z-index:3;display:grid;grid-template-columns:minmax(0,620px) 1fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--gold);
  border:1px solid rgba(232,178,74,.45);background:rgba(232,178,74,.08);
  padding:6px 14px;border-radius:999px;margin-bottom:22px;
}
.hero h1{font-size:clamp(32px,5vw,58px);font-weight:700;line-height:1.15;letter-spacing:0;}
.hero-sub{margin-top:20px;font-size:18px;color:var(--muted);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px;padding-top:28px;border-top:1px solid rgba(255,255,255,.08);}
.stat-num{display:block;font-size:26px;font-weight:700;color:#fff;}
.stat-label{display:block;font-size:13px;color:var(--dim);margin-top:2px;}

.glass-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(70,224,255,.4);}
.hero-card{padding:28px;}
.hero-card h2{font-size:17px;font-weight:600;color:var(--text);}
.hero-card .pct{font-size:44px;font-weight:700;color:var(--accent);line-height:1.1;margin-top:14px;text-shadow:0 0 24px rgba(70,224,255,.5);}
.progress-track{height:8px;border-radius:999px;background:rgba(255,255,255,.09);overflow:hidden;margin-top:18px;}
.progress-fill{height:100%;width:78%;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--violet));box-shadow:0 0 18px rgba(31,162,255,.7);}
.hero-card ul{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.hero-card li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px rgba(47,208,138,.8);flex:none;}
.dot.gold{background:var(--gold);box-shadow:0 0 10px rgba(232,178,74,.8);}
.dot.dim{background:var(--dim);box-shadow:none;}

/* ============ 频道胶囊 ============ */
.channels{padding:32px 0 8px;}
.pill-row{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px;scrollbar-width:none;}
.pill-row::-webkit-scrollbar{display:none;}
.pill{
  flex:none;display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .2s ease-out;white-space:nowrap;
}
.pill:hover{color:#fff;border-color:rgba(31,162,255,.7);background:rgba(31,162,255,.1);transform:translateY(-2px);}
.pill.is-current{color:#fff;border-color:var(--primary);background:rgba(31,162,255,.14);box-shadow:0 0 0 1px rgba(70,224,255,.25);}

/* ============ 玩法编号区块 ============ */
.step-block{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:40px 0;position:relative;
}
.step-block + .step-block{border-top:1px solid rgba(255,255,255,.06);}
.step-block.reverse .step-media{order:2;}
.step-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:12px;border:1px solid var(--line);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;font-size:15px;font-weight:700;
  color:var(--accent);background:rgba(31,162,255,.12);border:1px solid rgba(70,224,255,.35);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  margin-bottom:18px;
}
.step-body h3{font-size:22px;font-weight:600;margin-bottom:12px;}
.step-body p{color:var(--muted);font-size:15.5px;}

/* ============ 奖励网格 ============ */
.reward-grid{
  display:grid;gap:22px;
  grid-template-columns:1.25fr 1fr 1fr;
  grid-template-areas:"big s1 s2" "big wide wide";
}
.reward-big{grid-area:big;}
.reward-s1{grid-area:s1;}
.reward-s2{grid-area:s2;}
.reward-wide{grid-area:wide;}
.reward-card{overflow:hidden;display:flex;flex-direction:column;}
.reward-thumb{position:relative;overflow:hidden;}
.reward-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out;}
.reward-card:hover .reward-thumb img{transform:scale(1.04);}
.reward-big .reward-thumb{aspect-ratio:16/10;}
.reward-s1 .reward-thumb,.reward-s2 .reward-thumb{aspect-ratio:16/10;}
.reward-body{padding:20px 22px 24px;}
.reward-body h3{font-size:18px;font-weight:600;}
.reward-body p{margin-top:8px;font-size:14px;color:var(--muted);}
.reward-wide{flex-direction:row;align-items:center;gap:24px;padding:24px;}
.reward-wide .reward-thumb{flex:none;width:180px;aspect-ratio:3/2;border-radius:12px;overflow:hidden;}
.reward-wide .reward-body{padding:0;}
.rarity{
  position:absolute;top:14px;left:14px;font-size:12px;letter-spacing:.02em;font-weight:600;
  padding:5px 12px;border-radius:999px;backdrop-filter:blur(6px);
}
.rarity.gold{color:var(--gold);border:1px solid rgba(232,178,74,.7);background:rgba(232,178,74,.14);}
.rarity.blue{color:var(--accent);border:1px solid rgba(70,224,255,.55);background:rgba(31,162,255,.16);}
.rarity.violet{color:#C5B8FF;border:1px solid rgba(109,75,255,.7);background:rgba(109,75,255,.2);}

/* ============ 任务进度 ============ */
.track{position:relative;margin-top:12px;}
.track-line{position:absolute;left:6%;right:6%;top:22px;height:2px;background:rgba(255,255,255,.09);}
.track-line span{display:block;height:100%;width:78%;background:linear-gradient(90deg,var(--primary),var(--violet));box-shadow:0 0 12px rgba(31,162,255,.7);}
.track-nodes{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.node{display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;}
.node-dot{
  width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;background:var(--panel);border:1px solid var(--line);color:var(--dim);
}
.node.done .node-dot{background:linear-gradient(135deg,var(--primary),var(--violet));border-color:var(--gold);color:#fff;box-shadow:0 0 0 3px rgba(232,178,74,.25);}
.node.current .node-dot{background:rgba(31,162,255,.15);border-color:var(--accent);color:var(--accent);animation:pulse 2.6s ease-in-out infinite;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(70,224,255,.45);}50%{box-shadow:0 0 0 12px rgba(70,224,255,0);}}
.node-title{font-size:15px;font-weight:600;color:var(--text);}
.node-desc{font-size:13px;color:var(--dim);}
.track-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:36px;flex-wrap:wrap;color:var(--muted);font-size:14px;}
.track-foot strong{color:var(--accent);font-size:22px;font-weight:700;}

/* ============ 最新信息 ============ */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
.filter-chip{
  font-size:13px;padding:7px 16px;border-radius:999px;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.filter-chip.is-on{color:#fff;border-color:var(--primary);background:rgba(31,162,255,.14);}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{overflow:hidden;display:flex;flex-direction:column;}
.post-cover{position:relative;aspect-ratio:16/10;overflow:hidden;}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out;}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-cat{
  position:absolute;left:14px;top:14px;font-size:12px;padding:4px 12px;border-radius:999px;
  color:var(--accent);background:rgba(6,10,20,.72);border:1px solid rgba(70,224,255,.4);backdrop-filter:blur(6px);
}
.post-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--dim);padding-top:8px;border-top:1px solid rgba(255,255,255,.06);}
.empty-state{
  grid-column:1/-1;padding:56px 24px;text-align:center;border:1px dashed rgba(255,255,255,.14);
  border-radius:var(--radius);background:rgba(255,255,255,.02);
}
.empty-state .ico{font-size:30px;color:var(--dim);}
.empty-state p{margin-top:12px;color:var(--muted);font-size:15px;}
.empty-state a{margin-top:16px;display:inline-flex;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(31,162,255,.16),rgba(109,75,255,.2));
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:40px;
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.8vw,34px);font-weight:700;}
.cta-band p{margin-top:12px;color:var(--muted);max-width:560px;font-size:15px;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{border:1px solid var(--line);border-radius:var(--radius);background:var(--glass);overflow:hidden;transition:border-color .2s ease-out;}
.faq-item.is-open{border-color:rgba(70,224,255,.45);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 24px;font-size:16.5px;font-weight:600;text-align:left;color:var(--text);
}
.faq-q .plus{
  flex:none;width:26px;height:26px;border-radius:8px;border:1px solid rgba(31,162,255,.5);
  color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;
  transition:transform .24s ease-out,background .24s ease-out;
}
.faq-item.is-open .plus{transform:rotate(45deg);background:rgba(31,162,255,.16);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out;}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a p{padding:0 24px 24px;color:var(--muted);font-size:15px;}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(12,20,36,.6),rgba(6,10,20,1));padding:72px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{font-size:24px;height:auto;}
.footer-brand p{margin-top:16px;color:var(--muted);font-size:14px;max-width:280px;}
.footer-brand .contact{margin-top:16px;font-size:14px;color:var(--accent);}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em;margin-bottom:18px;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:var(--muted);transition:color .2s ease-out;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.07);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--dim);}
.footer-bottom a:hover{color:var(--muted);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero-inner{grid-template-columns:minmax(0,560px) 1fr;gap:40px;}
}
@media (max-width:1023px){
  .container-x{padding:0 24px;}
  .section{padding:72px 0;}
  .nav-desktop{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-sm{display:none;}
  .hero{height:auto;min-height:0;padding:132px 0 64px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-sub{font-size:16.5px;}
  .hero-stats{gap:28px;margin-top:34px;}
  .step-block{grid-template-columns:1fr;gap:26px;padding:32px 0;}
  .step-block.reverse .step-media{order:0;}
  .reward-grid{grid-template-columns:1fr 1fr;grid-template-areas:"big big" "s1 s2" "wide wide";}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:639px){
  .container-x{padding:0 20px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:36px;}
  .hero{padding:118px 0 48px;}
  .hero-stats{gap:20px;row-gap:18px;}
  .stat-num{font-size:22px;}
  .reward-grid{grid-template-columns:1fr;grid-template-areas:"big" "s1" "s2" "wide";}
  .reward-wide{flex-direction:column;align-items:stretch;}
  .reward-wide .reward-thumb{width:100%;}
  .post-grid{grid-template-columns:1fr;}
  .track-nodes{grid-template-columns:1fr 1fr;gap:24px;}
  .track-line{display:none;}
  .cta-band{padding:30px 24px;border-radius:18px;}
  .brk-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{padding:18px;font-size:15.5px;}
  .faq-a p{padding:0 18px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg:#060A14;
  --panel:#0C1424;
  --primary:#1FA2FF;
  --primary-deep:#0B6DD6;
  --cyan:#46E0FF;
  --violet:#6D4BFF;
  --gold:#E8B24A;
  --text:#E8EEF7;
  --muted:#9FB0C7;
  --dim:#6B7C93;
  --success:#2FD08A;
  --warn:#FF7A59;
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.05);
  --radius:18px;
  --radius-sm:12px;
  --shadow-card:0 24px 60px -30px rgba(0,0,0,.9);
  --glow:0 8px 28px -6px rgba(31,162,255,.55);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(109,75,255,.22), transparent 70%),
    radial-gradient(680px 380px at 88% 4%, rgba(31,162,255,.18), transparent 72%);
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,162,255,.35)}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:2}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  transition:background .2s ease-out,border-color .2s ease-out,backdrop-filter .2s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.85);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:24px;height:76px}
.brand{display:inline-flex;align-items:baseline;gap:2px;font-size:26px;font-weight:800;line-height:1;height:32px}
.brand-mark{color:var(--primary);text-shadow:0 0 18px rgba(31,162,255,.65)}
.brand-text{color:var(--text);font-weight:600}
.nav-desktop{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;
  padding:9px 12px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:10px;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";
  position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(31,162,255,.9);
  border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  font-weight:600;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,color .2s ease-out;
  border:1px solid transparent;
  white-space:nowrap;
}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-lg{padding:14px 30px;font-size:15.5px}
.btn-primary{
  background:linear-gradient(135deg,#1FA2FF 0%,#6D4BFF 100%);
  color:#fff;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px -6px rgba(31,162,255,.8),0 0 0 1px rgba(70,224,255,.6)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(31,162,255,.5);color:#BEE3FF;background:transparent}
.btn-ghost:hover{border-color:var(--cyan);color:#fff;background:rgba(31,162,255,.1)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-drawer{
  position:fixed;inset:0;z-index:59;
  background:rgba(6,10,20,.96);
  backdrop-filter:blur(10px);
  padding:96px 24px 40px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:none}
.nav-drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 4px;font-size:19px;font-weight:600;
  border-bottom:1px solid var(--line-soft);color:var(--text);
}
.nav-drawer a.drawer-link::after{content:"→";color:var(--dim);font-size:16px}
.nav-drawer a.drawer-link.is-active{color:var(--primary)}
.drawer-cta{margin-top:28px}

/* ---------- article hero ---------- */
.art-hero{
  position:relative;
  min-height:330px;
  display:flex;align-items:flex-end;
  padding:132px 0 44px;
  background-image:linear-gradient(180deg,rgba(6,10,20,.62) 0%,rgba(6,10,20,.96) 100%),url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.art-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:18px;position:relative;z-index:2}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{opacity:.55}
.crumbs .now{color:var(--primary)}
.art-hero h1{font-size:clamp(30px,4.4vw,50px);font-weight:700;line-height:1.18;max-width:900px;position:relative;z-index:2}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:22px;color:var(--muted);font-size:14px;position:relative;z-index:2}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;letter-spacing:.02em;font-weight:600;
  background:rgba(31,162,255,.14);
  border:1px solid rgba(31,162,255,.4);
  color:#A9D9FF;
}
.badge-gold{background:rgba(232,178,74,.1);border-color:rgba(232,178,74,.55);color:var(--gold)}

/* ---------- layout ---------- */
.art-wrap{padding:64px 0 88px}
.art-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start}
.art-main{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  padding:40px 40px 48px;
  backdrop-filter:blur(14px);
  min-width:0;
}
.article-body{max-width:760px;font-size:16.5px;line-height:1.85;color:#DCE6F3;word-break:break-word}
.article-body > * + *{margin-top:1.2em}
.article-body h2{
  position:relative;
  margin-top:40px;
  padding-left:16px;
  font-size:clamp(21px,2.4vw,27px);
  font-weight:700;
  color:#fff;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:var(--primary);box-shadow:0 0 12px rgba(31,162,255,.9);
}
.article-body h3{font-size:19.5px;font-weight:600;color:#fff;margin-top:1.6em}
.article-body ul,.article-body ol{padding-left:22px}
.article-body ul{list-style:none;padding-left:20px}
.article-body ul li{position:relative;margin:.45em 0}
.article-body ul li::before{
  content:"";position:absolute;left:-18px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 8px rgba(31,162,255,.8);
}
.article-body ol{list-style:decimal;color:#DCE6F3}
.article-body ol li{margin:.45em 0}
.article-body ol li::marker{color:var(--primary);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;
  border-left:3px solid var(--primary);
  background:rgba(31,162,255,.07);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#C9DDF2;
}
.article-body img{border-radius:var(--radius-sm);margin:1.6em 0;border:1px solid var(--line)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13.5px;color:var(--dim);text-align:center;margin-top:.6em}
.article-body a{color:var(--cyan);border-bottom:1px solid rgba(70,224,255,.35)}
.article-body a:hover{border-bottom-color:var(--cyan)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body thead th{background:rgba(31,162,255,.12);color:#fff;font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.article-body code{background:rgba(109,75,255,.18);padding:2px 7px;border-radius:6px;font-size:14px;color:#C8B6FF}
.article-body hr{border:0;border-top:1px solid var(--line-soft);margin:2.2em 0}
.empty-state{
  border:1px dashed rgba(31,162,255,.4);
  background:rgba(31,162,255,.06);
  border-radius:var(--radius);
  padding:56px 28px;text-align:center;
}
.empty-state .ico{font-size:34px;margin-bottom:12px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* article foot */
.art-foot{margin-top:52px;padding-top:32px;border-top:1px solid var(--line-soft)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  padding:6px 14px;border-radius:999px;font-size:13px;
  border:1px solid var(--line);color:var(--muted);
  background:rgba(255,255,255,.03);
}
.tag:hover{border-color:rgba(31,162,255,.6);color:#CDE9FF}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.pager a{
  display:block;padding:18px 20px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.pager a:hover{transform:translateY(-4px);border-color:rgba(31,162,255,.55)}
.pager .lbl{font-size:12.5px;color:var(--dim);letter-spacing:.04em}
.pager .ttl{font-size:15px;font-weight:600;margin-top:6px;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.art-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- sidebar ---------- */
.side{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px;min-width:0}
.widget{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
}
.widget h3{font-size:15.5px;font-weight:700;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.widget h3::before{content:"";width:4px;height:15px;border-radius:2px;background:linear-gradient(135deg,var(--primary),var(--violet))}
.toc{max-height:330px;overflow:auto;padding-right:4px}
.toc a{display:block;font-size:14px;color:var(--muted);padding:7px 10px;border-radius:8px;border-left:2px solid transparent}
.toc a:hover{color:#fff;background:rgba(255,255,255,.04);border-left-color:var(--primary)}
.toc a.lvl-3{padding-left:24px;font-size:13.5px}
.toc-empty{font-size:13.5px;color:var(--dim)}
.mini-list li + li{border-top:1px solid var(--line-soft)}
.mini-list a{display:flex;gap:12px;padding:12px 4px;transition:background .2s ease-out}
.mini-list a:hover{background:rgba(255,255,255,.03)}
.mini-list .idx{
  flex:0 0 26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:700;color:#9FD4FF;
  background:rgba(31,162,255,.14);border:1px solid rgba(31,162,255,.3);
}
.mini-list .idx.top{color:var(--gold);background:rgba(232,178,74,.12);border-color:rgba(232,178,74,.5)}
.mini-list .t{font-size:14px;color:#D6E2F0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mini-list .d{font-size:12.5px;color:var(--dim);margin-top:6px}
.side-cta{background:linear-gradient(135deg,rgba(31,162,255,.18),rgba(109,75,255,.16));border-color:rgba(31,162,255,.4)}
.side-cta p{font-size:14px;color:#CBDBEE;margin-bottom:16px}

/* ---------- related ---------- */
.section{padding:88px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .eyebrow{font-size:13px;letter-spacing:.14em;color:var(--primary);font-weight:700;text-transform:uppercase}
.section-head h2{font-size:clamp(24px,3.2vw,38px);font-weight:700;margin-top:12px}
.section-head p{color:var(--muted);margin-top:14px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,border-color .2s ease-out;
  height:100%;
}
.card:hover{transform:translateY(-4px);border-color:rgba(31,162,255,.5)}
.card-cover{aspect-ratio:16/10;overflow:hidden;position:relative;background:#0A1120}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover .ribbon{position:absolute;top:12px;left:12px}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;font-weight:600;color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:12.5px;color:var(--dim)}
.card-meta .go{color:var(--primary);font-weight:600}
.card:hover .card-meta .go{color:var(--cyan)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;
  border-radius:22px;
  border:1px solid rgba(31,162,255,.35);
  background:linear-gradient(135deg,rgba(31,162,255,.16),rgba(109,75,255,.14) 60%,rgba(232,178,74,.08));
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  overflow:hidden;
  backdrop-filter:blur(14px);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;position:relative;z-index:2}
.cta-band p{color:#CBDCF0;margin-top:10px;max-width:560px;position:relative;z-index:2}
.cta-band .btn{position:relative;z-index:2}

/* ---------- footer ---------- */
.site-footer{position:relative;z-index:2;border-top:1px solid var(--line);background:rgba(6,10,20,.86);padding:64px 0 28px;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:320px}
.footer-brand .contact{color:var(--dim);font-size:13.5px;margin-top:14px}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--cyan)}

@media (max-width:1023px){
  .container-x{padding:0 24px}
  .nav-desktop{display:none}
  .nav-toggle{display:flex}
  .art-grid{grid-template-columns:1fr}
  .side{position:static;top:auto}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
  .art-main{padding:32px 26px 36px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 28px}
}
@media (max-width:639px){
  .container-x{padding:0 20px}
  .header-inner{height:68px}
  .brand{font-size:23px}
  .art-hero{min-height:270px;padding:112px 0 32px}
  .art-wrap{padding:44px 0 64px}
  .art-main{padding:26px 18px 30px}
  .article-body{font-size:16px}
  .grid-3{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .cta-band{padding:30px 20px;border-radius:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
    --bg:#060A14;
    --panel:#0C1424;
    --primary:#1FA2FF;
    --accent:#46E0FF;
    --violet:#6D4BFF;
    --gold:#E8B24A;
    --text:#E8EEF7;
    --muted:#9FB0C7;
    --dim:#6B7C93;
    --success:#2FD08A;
    --warn:#FF7A59;
    --glass:rgba(255,255,255,.05);
    --line:rgba(255,255,255,.09);
    --line-soft:rgba(255,255,255,.06);
    --radius:18px;
    --radius-sm:12px;
    --shadow:0 24px 60px -30px rgba(0,0,0,.9);
    --glow:0 8px 28px -6px rgba(31,162,255,.55);
    --ease:200ms ease-out;
  }

  *,
  *::before,
  *::after{ box-sizing:border-box; }

  html{ scroll-behavior:smooth; }

  body.page-body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC','Inter',system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }

  body.drawer-open{ overflow:hidden; }

  img{ max-width:100%; display:block; height:auto; }

  a{ color:inherit; text-decoration:none; transition:color var(--ease); }

  button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }

  h1,h2,h3,h4{ margin:0; line-height:1.2; font-weight:700; letter-spacing:0; }

  p{ margin:0; }

  ul,ol{ margin:0; padding:0; list-style:none; }

  input,textarea,select{ font:inherit; }

  :focus-visible{
    outline:2px solid var(--accent);
    outline-offset:2px;
    border-radius:6px;
  }

  .container-x{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 32px;
  }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:fixed;
    top:0; left:0; right:0;
    z-index:80;
    border-bottom:1px solid transparent;
    transition:background var(--ease), border-color var(--ease), backdrop-filter var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(6,10,20,.85);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-bottom-color:var(--line-soft);
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:24px;
    height:72px;
  }
  .brand{
    display:inline-flex;
    align-items:baseline;
    gap:1px;
    font-size:22px;
    font-weight:700;
    letter-spacing:.01em;
    flex:0 0 auto;
  }
  .brand-mark{
    color:var(--accent);
    font-weight:800;
    text-shadow:0 0 18px rgba(70,224,255,.55);
  }
  .brand-text{
    font-weight:400;
    color:var(--text);
  }
  .nav-desktop{
    display:flex;
    align-items:center;
    gap:4px;
    margin-left:auto;
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:8px 12px;
    font-size:14px;
    color:var(--muted);
    border-radius:999px;
    white-space:nowrap;
  }
  .nav-link:hover{ color:var(--text); }
  .nav-link.is-active{ color:var(--text); }
  .nav-link.is-active::after{
    content:"";
    position:absolute;
    left:12px; right:12px; bottom:0;
    height:2px;
    border-radius:2px;
    background:linear-gradient(135deg,var(--primary),var(--accent));
    box-shadow:0 0 12px rgba(31,162,255,.8);
  }
  .header-actions{
    display:flex;
    align-items:center;
    gap:12px;
    margin-left:12px;
  }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    border-radius:999px;
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    line-height:1.2;
    white-space:nowrap;
    transition:transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
  }
  .btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--violet));
    color:#fff;
    box-shadow:var(--glow);
  }
  .btn-primary:hover{
    transform:translateY(-4px);
    box-shadow:0 12px 34px -6px rgba(31,162,255,.8), 0 0 0 1px rgba(70,224,255,.6);
  }
  .btn-primary:active{ transform:translateY(-1px); }
  .btn-ghost{
    border-color:rgba(31,162,255,.55);
    color:var(--accent);
    background:transparent;
  }
  .btn-ghost:hover{
    background:rgba(31,162,255,.1);
    transform:translateY(-4px);
  }
  .btn-sm{ padding:9px 18px; font-size:14px; }

  .arrow-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:15px;
    font-weight:600;
    color:var(--accent);
  }
  .arrow-link span.arrow{
    display:inline-block;
    transition:transform var(--ease);
  }
  .arrow-link:hover span.arrow{ transform:translateX(8px); }

  .nav-toggle{
    display:none;
    width:42px; height:42px;
    border-radius:12px;
    border:1px solid var(--line);
    background:var(--glass);
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
  }
  .nav-toggle span{
    display:block;
    width:18px; height:2px;
    border-radius:2px;
    background:var(--text);
    transition:transform var(--ease), opacity var(--ease);
  }

  .nav-drawer{
    position:fixed;
    inset:0;
    z-index:70;
    padding:96px 24px 32px;
    background:rgba(6,10,20,.96);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    display:flex;
    flex-direction:column;
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transition:opacity var(--ease), visibility var(--ease);
  }
  .nav-drawer.is-open{ opacity:1; visibility:visible; }
  .drawer-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:18px 4px;
    font-size:19px;
    color:var(--text);
    border-bottom:1px solid var(--line-soft);
  }
  .drawer-link.is-active{ color:var(--accent); }
  .drawer-link i{
    font-style:normal;
    color:var(--dim);
    font-size:18px;
  }
  .drawer-foot{
    margin-top:auto;
    padding-top:28px;
  }
  .drawer-foot .btn{ width:100%; }

  /* ============ Hero ============ */
  .hero-band{
    position:relative;
    isolation:isolate;
    padding:168px 0 88px;
    background-color:#080D1A;
    background-size:cover;
    background-position:center;
    overflow:hidden;
  }
  .hero-veil{
    position:absolute;
    inset:0;
    z-index:-1;
    background:
      radial-gradient(circle at 20% 18%, rgba(109,75,255,.30), transparent 58%),
      radial-gradient(circle at 82% 26%, rgba(31,162,255,.24), transparent 56%),
      linear-gradient(to bottom, rgba(6,10,20,.62) 0%, rgba(6,10,20,.86) 58%, rgba(6,10,20,.97) 100%);
  }
  .hero-grid-tex{
    position:absolute;
    inset:0;
    z-index:-1;
    opacity:.55;
    background-image:
      linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size:48px 48px;
    mask-image:radial-gradient(circle at 50% 30%, #000 12%, transparent 78%);
    -webkit-mask-image:radial-gradient(circle at 50% 30%, #000 12%, transparent 78%);
  }
  .cat-hero .hero-inner{
    max-width:840px;
    margin:0 auto;
    text-align:center;
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:20px;
  }
  .crumb{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    font-size:13px;
    color:var(--dim);
  }
  .crumb a:hover{ color:var(--accent); }
  .crumb-cur{ color:var(--primary); }
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 14px;
    border-radius:999px;
    font-size:12px;
    letter-spacing:.02em;
    color:var(--accent);
    background:rgba(31,162,255,.14);
    border:1px solid rgba(31,162,255,.32);
  }
  .badge-gold{
    color:var(--gold);
    background:rgba(232,178,74,.1);
    border-color:rgba(232,178,74,.42);
  }
  .hero-title{
    font-size:clamp(32px,5vw,60px);
    font-weight:700;
    line-height:1.15;
    letter-spacing:0;
  }
  .hero-lead{
    max-width:680px;
    font-size:16px;
    line-height:1.85;
    color:var(--muted);
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:center;
    gap:18px;
    margin-top:8px;
  }
  .hero-stats{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:14px;
    margin-top:18px;
  }
  .hero-stat{
    min-width:150px;
    padding:14px 20px;
    border-radius:14px;
    background:var(--glass);
    border:1px solid var(--line);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    text-align:left;
  }
  .hero-stat b{
    display:block;
    font-size:24px;
    font-weight:700;
    font-variant-numeric:tabular-nums;
    background:linear-gradient(135deg,var(--accent),var(--primary));
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }
  .hero-stat span{
    font-size:13px;
    color:var(--dim);
  }

  /* ============ 通用板块 ============ */
  .section{ padding:104px 0; }
  .section-tight{ padding:72px 0; }
  .section-head{
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:44px;
  }
  .section-title{
    font-size:clamp(24px,3.2vw,40px);
    font-weight:700;
  }
  .section-sub{
    margin-top:12px;
    max-width:640px;
    color:var(--muted);
    font-size:15px;
  }
  .eyebrow{
    display:inline-block;
    margin-bottom:12px;
    font-size:13px;
    letter-spacing:.12em;
    color:var(--primary);
    text-transform:uppercase;
  }

  /* 页面内筛选胶囊条（区别于全局导航） */
  .filter-bar{
    display:flex;
    align-items:center;
    gap:10px;
    padding:8px;
    margin-bottom:40px;
    border-radius:999px;
    background:rgba(255,255,255,.03);
    border:1px solid var(--line-soft);
    overflow-x:auto;
    scrollbar-width:none;
  }
  .filter-bar::-webkit-scrollbar{ display:none; }
  .chip{
    flex:0 0 auto;
    padding:7px 16px;
    border-radius:999px;
    font-size:13px;
    color:var(--muted);
    border:1px solid transparent;
    transition:color var(--ease), background var(--ease), border-color var(--ease);
  }
  .chip:hover{ color:var(--text); background:rgba(255,255,255,.05); }
  .chip.is-on{
    color:var(--accent);
    border-color:rgba(31,162,255,.5);
    background:rgba(31,162,255,.12);
  }

  .plate{
    border-radius:var(--radius);
    background:var(--glass);
    border:1px solid var(--line);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    box-shadow:var(--shadow);
  }

  /* 数据面板 */
  .metric-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .metric{
    padding:28px 26px;
    border-radius:var(--radius);
    background:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
    border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .metric b{
    display:block;
    font-size:clamp(28px,3.4vw,40px);
    font-weight:700;
    font-variant-numeric:tabular-nums;
    color:var(--text);
  }
  .metric .metric-unit{
    font-size:14px;
    color:var(--primary);
    margin-left:6px;
    font-weight:600;
  }
  .metric p{
    margin-top:10px;
    font-size:14px;
    color:var(--muted);
  }
  .metric .metric-line{
    height:6px;
    margin-top:18px;
    border-radius:999px;
    background:rgba(255,255,255,.07);
    overflow:hidden;
  }
  .metric .metric-line i{
    display:block;
    height:100%;
    border-radius:999px;
    background:linear-gradient(135deg,var(--primary),var(--accent));
  }
  .metric .metric-line.gold i{
    background:linear-gradient(135deg,var(--gold),#f2d08a);
  }

  /* 编号章节 + 左右交错图文 */
  .num-list{ display:flex; flex-direction:column; }
  .num-block{
    display:grid;
    grid-template-columns:1fr 1fr;
    align-items:center;
    gap:56px;
    padding:64px 0;
    border-top:1px solid var(--line-soft);
  }
  .num-block:first-child{ border-top:0; padding-top:8px; }
  .num-block.flip .num-media{ order:2; }
  .num-index{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:52px; height:52px;
    margin-bottom:18px;
    font-size:18px;
    font-weight:700;
    font-variant-numeric:tabular-nums;
    color:#061019;
    background:linear-gradient(135deg,var(--accent),var(--primary));
    clip-path:polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  }
  .num-block:nth-child(even) .num-index{
    color:var(--gold);
    background:rgba(232,178,74,.12);
    border:1px solid rgba(232,178,74,.45);
  }
  .num-body h3{
    font-size:clamp(20px,2.2vw,24px);
    font-weight:600;
    margin-bottom:14px;
  }
  .num-body p{
    color:var(--muted);
    font-size:15px;
  }
  .num-points{
    margin-top:20px;
    display:flex;
    flex-wrap:wrap;
    gap:8px;
  }
  .tag{
    display:inline-block;
    padding:5px 12px;
    border-radius:999px;
    font-size:12px;
    letter-spacing:.02em;
    color:var(--muted);
    background:rgba(255,255,255,.05);
    border:1px solid var(--line-soft);
  }
  .tag-gold{
    color:var(--gold);
    background:rgba(232,178,74,.08);
    border-color:rgba(232,178,74,.35);
  }
  .num-media{
    border-radius:var(--radius);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--panel);
    box-shadow:var(--shadow);
    position:relative;
  }
  .num-media img{
    width:100%;
    aspect-ratio:3/2;
    object-fit:cover;
    border-radius:var(--radius);
    transition:transform 320ms ease-out;
  }
  .num-media:hover img{ transform:scale(1.04); }
  .num-media figcaption{
    position:absolute;
    left:0; right:0; bottom:0;
    padding:26px 18px 14px;
    font-size:13px;
    color:var(--muted);
    background:linear-gradient(to top, rgba(6,10,20,.9), rgba(6,10,20,0));
  }

  /* 关注清单 */
  .check-wrap{
    display:grid;
    grid-template-columns:0.9fr 1.1fr;
    gap:40px;
    align-items:start;
  }
  .check-intro{
    padding:32px 30px;
    border-radius:var(--radius);
    background:linear-gradient(160deg, rgba(109,75,255,.18), rgba(31,162,255,.06));
    border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .check-intro h3{
    font-size:22px;
    font-weight:600;
    margin-bottom:12px;
  }
  .check-intro p{
    color:var(--muted);
    font-size:15px;
  }
  .check-list{
    border-radius:var(--radius);
    border:1px solid var(--line);
    background:var(--glass);
    overflow:hidden;
  }
  .check-item{
    display:flex;
    align-items:flex-start;
    gap:14px;
    padding:18px 24px;
    border-bottom:1px solid var(--line-soft);
    transition:background var(--ease);
  }
  .check-item:last-child{ border-bottom:0; }
  .check-item:hover{ background:rgba(255,255,255,.03); }
  .check-item i{
    flex:0 0 auto;
    width:22px; height:22px;
    margin-top:4px;
    border-radius:6px;
    background:linear-gradient(135deg,var(--primary),var(--accent));
    clip-path:polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
    position:relative;
  }
  .check-item i::after{
    content:"";
    position:absolute;
    left:7px; top:8px;
    width:7px; height:4px;
    border-left:2px solid #04121f;
    border-bottom:2px solid #04121f;
    transform:rotate(-45deg);
  }
  .check-item strong{
    display:block;
    font-size:15px;
    font-weight:600;
  }
  .check-item span{
    display:block;
    font-size:13px;
    color:var(--dim);
    margin-top:2px;
  }

  /* FAQ */
  .faq-list{
    display:flex;
    flex-direction:column;
    gap:12px;
    max-width:920px;
    margin:0 auto;
  }
  .faq-item{
    border-radius:16px;
    border:1px solid var(--line);
    background:var(--glass);
    overflow:hidden;
    transition:border-color var(--ease), background var(--ease);
  }
  .faq-item:hover{ border-color:rgba(31,162,255,.35); }
  .faq-item.is-open{ border-color:rgba(31,162,255,.5); background:rgba(31,162,255,.05); }
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:20px 24px;
    text-align:left;
    font-size:16px;
    font-weight:600;
    color:var(--text);
  }
  .faq-q .sign{
    flex:0 0 auto;
    position:relative;
    width:22px; height:22px;
  }
  .faq-q .sign::before,
  .faq-q .sign::after{
    content:"";
    position:absolute;
    background:var(--accent);
    border-radius:2px;
    transition:transform 240ms ease-out, opacity 240ms ease-out;
  }
  .faq-q .sign::before{ left:2px; top:10px; width:18px; height:2px; }
  .faq-q .sign::after{ left:10px; top:2px; width:2px; height:18px; }
  .faq-item.is-open .faq-q .sign::after{ transform:rotate(90deg); opacity:0; }
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height 240ms ease-out;
  }
  .faq-a p{
    padding:0 24px 22px;
    color:var(--muted);
    font-size:15px;
  }

  /* CTA 带 */
  .cta-band{
    position:relative;
    isolation:isolate;
    overflow:hidden;
    padding:0;
  }
  .cta-panel{
    position:relative;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:28px;
    padding:48px 48px;
    border-radius:24px;
    border:1px solid var(--line);
    background:
      linear-gradient(135deg, rgba(31,162,255,.16), rgba(109,75,255,.12) 55%, rgba(6,10,20,.4)),
      linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px) 0 0/44px 44px,
      linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px) 0 0/44px 44px,
      var(--panel);
    box-shadow:var(--shadow);
  }
  .cta-panel h2{
    font-size:clamp(22px,2.8vw,32px);
    font-weight:700;
  }
  .cta-panel p{
    margin-top:10px;
    max-width:620px;
    color:var(--muted);
    font-size:15px;
  }
  .cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    align-items:center;
  }
  .cta-media{
    position:absolute;
    inset:0;
    z-index:-1;
    background-size:cover;
    background-position:center;
    opacity:.14;
  }

  /* ============ 页脚 ============ */
  .site-footer{
    margin-top:24px;
    padding:72px 0 0;
    border-top:1px solid var(--line-soft);
    background:linear-gradient(to bottom, rgba(12,20,36,.6), rgba(6,10,20,1));
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1fr;
    gap:40px;
  }
  .footer-brand p{
    margin-top:14px;
    max-width:320px;
    font-size:14px;
    color:var(--muted);
  }
  .footer-brand .contact{
    margin-top:16px;
    font-size:13px;
    color:var(--dim);
    word-break:break-all;
  }
  .footer-col h4{
    font-size:14px;
    font-weight:600;
    color:var(--text);
    margin-bottom:16px;
  }
  .footer-col li{
    border-bottom:1px solid var(--line-soft);
  }
  .footer-col li:last-child{ border-bottom:0; }
  .footer-col li a{
    display:block;
    padding:9px 0;
    font-size:14px;
    color:var(--muted);
  }
  .footer-col li a:hover{ color:var(--accent); }
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    margin-top:56px;
    padding:20px 0 26px;
    border-top:1px solid var(--line-soft);
    font-size:13px;
    color:var(--dim);
  }
  .footer-bottom a{ color:var(--muted); }
  .footer-bottom a:hover{ color:var(--accent); }

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .container-x{ padding:0 24px; }
    .nav-desktop{ display:none; }
    .nav-toggle{ display:flex; }
    .header-actions{ margin-left:auto; }
    .header-actions .btn{ display:none; }
    .section{ padding:72px 0; }
    .section-tight{ padding:56px 0; }
    .hero-band{ padding:140px 0 72px; }
    .metric-grid{ grid-template-columns:1fr 1fr; }
    .num-block{ grid-template-columns:1fr; gap:28px; padding:48px 0; }
    .num-block.flip .num-media{ order:0; }
    .check-wrap{ grid-template-columns:1fr; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
    .cta-panel{ padding:36px 28px; }
  }

  @media (max-width:639px){
    .container-x{ padding:0 20px; }
    body.page-body{ font-size:15px; }
    .header-inner{ height:64px; gap:12px; }
    .brand{ font-size:20px; }
    .hero-band{ padding:124px 0 56px; }
    .hero-stat{ width:100%; }
    .section{ padding:52px 0; }
    .section-tight{ padding:44px 0; }
    .metric-grid{ grid-template-columns:1fr; }
    .metric{ padding:22px 20px; }
    .footer-grid{ grid-template-columns:1fr; gap:28px; }
    .footer-bottom{ flex-direction:column; align-items:flex-start; }
    .faq-q{ padding:16px 18px; font-size:15px; }
    .faq-a p{ padding:0 18px 18px; }
    .cta-panel{ padding:28px 22px; border-radius:18px; }
    .cta-actions .btn{ width:100%; }
    .num-index{ width:44px; height:44px; font-size:16px; }
  }

  @media (prefers-reduced-motion:reduce){
    *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
  }

/* roulang page: category2 */
:root{
    --bg:#060A14;
    --panel:#0C1424;
    --primary:#1FA2FF;
    --accent:#46E0FF;
    --violet:#6D4BFF;
    --gold:#E8B24A;
    --text:#E8EEF7;
    --muted:#9FB0C7;
    --dim:#6B7C93;
    --glass:rgba(255,255,255,.05);
    --line:rgba(255,255,255,.09);
    --line-soft:rgba(255,255,255,.06);
    --radius:18px;
    --glow:0 8px 28px -6px rgba(31,162,255,.55);
    --card-shadow:0 24px 60px -30px rgba(0,0,0,.9);
    --ok:#2FD08A;
    --warn:#FF7A59;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:Inter,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.75;
    letter-spacing:0;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
  }
  body.no-scroll{overflow:hidden}
  img{max-width:100%;display:block;border-radius:12px}
  a{color:inherit;text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out}
  button,input,select,textarea{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  .num{font-variant-numeric:tabular-nums}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

  .container-x{max-width:1240px;margin:0 auto;padding:0 32px;width:100%}

  /* ---------- header ---------- */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:90;
    background:transparent;
    border-bottom:1px solid transparent;
    transition:background .2s ease-out,border-color .2s ease-out,backdrop-filter .2s ease-out;
  }
  .site-header.is-scrolled{
    background:rgba(6,10,20,.85);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
  .brand{display:inline-flex;align-items:baseline;gap:1px;font-size:23px;line-height:1;letter-spacing:.01em;height:32px}
  .brand-mark{color:var(--primary);font-weight:800;text-shadow:0 0 18px rgba(31,162,255,.65)}
  .brand-text{font-weight:400;color:var(--text)}
  .nav-desktop{display:flex;align-items:center;gap:26px}
  .nav-link{
    position:relative;font-size:15px;color:var(--muted);padding:6px 0;white-space:nowrap;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
    background:var(--primary);opacity:0;box-shadow:0 0 12px rgba(31,162,255,.8);
    transition:opacity .2s ease-out;
  }
  .nav-link:hover{color:#fff}
  .nav-link.is-active{color:#fff}
  .nav-link.is-active::after{opacity:1}
  .header-actions{display:flex;align-items:center;gap:14px}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;border:1px solid transparent;cursor:pointer;
    font-size:15px;font-weight:600;line-height:1;
    padding:14px 26px;
    transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,color .2s ease-out;
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(135deg,#1FA2FF 0%,#6D4BFF 100%);
    color:#fff;box-shadow:var(--glow);
  }
  .btn-primary:hover{transform:translateY(-4px);box-shadow:0 12px 34px -6px rgba(31,162,255,.8),0 0 0 1px rgba(70,224,255,.6)}
  .btn-primary:active{transform:translateY(-1px)}
  .btn-ghost{
    background:transparent;border-color:rgba(31,162,255,.7);color:var(--primary);
  }
  .btn-ghost:hover{transform:translateY(-4px);background:rgba(31,162,255,.1);border-color:var(--accent);color:#fff}
  .btn-sm{padding:10px 20px;font-size:14px}
  .btn-block{width:100%}
  .btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:14px}
  .link-arrow span{transition:transform .2s ease-out;display:inline-block}
  .link-arrow:hover span{transform:translateX(8px)}

  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
    background:rgba(255,255,255,.04);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
  .nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.is-open span:nth-child(2){opacity:0}
  .nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  .nav-drawer{
    position:fixed;inset:0;z-index:80;
    background:rgba(6,10,20,.96);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    padding:96px 24px 32px;
    display:flex;flex-direction:column;justify-content:space-between;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .2s ease-out,transform .2s ease-out;
  }
  .nav-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .drawer-list li+li{border-top:1px solid var(--line-soft)}
  .drawer-list a{
    display:flex;align-items:center;justify-content:space-between;
    padding:18px 4px;font-size:19px;color:var(--text);
  }
  .drawer-list a::after{content:"›";color:var(--dim);font-size:22px;line-height:1}
  .drawer-list a.is-active{color:var(--primary)}
  .drawer-foot{margin-top:28px;display:flex;flex-direction:column;gap:14px}

  /* ---------- hero ---------- */
  .hero{
    position:relative;
    padding:150px 0 88px;
    overflow:hidden;
    border-bottom:1px solid var(--line-soft);
  }
  .hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center right;
    transform:scale(1.02);
  }
  .hero-mask{
    position:absolute;inset:0;
    background:
      linear-gradient(90deg,rgba(6,10,20,.97) 0%,rgba(6,10,20,.86) 44%,rgba(6,10,20,.55) 100%),
      linear-gradient(180deg,rgba(6,10,20,.6) 0%,rgba(6,10,20,.35) 40%,rgba(6,10,20,.97) 100%);
  }
  .hero-grid{
    position:absolute;inset:0;opacity:.55;
    background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
    background-size:48px 48px;
  }
  .hero-orb{
    position:absolute;border-radius:50%;filter:blur(70px);pointer-events:none;
  }
  .hero-orb.a{width:360px;height:360px;background:rgba(109,75,255,.34);top:-90px;right:6%}
  .hero-orb.b{width:300px;height:300px;background:rgba(31,162,255,.3);bottom:-110px;left:-60px}
  .hero-inner{position:relative;z-index:2;max-width:760px}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:20px}
  .crumb a{color:var(--muted)}
  .crumb a:hover{color:var(--primary)}
  .crumb .sep{color:rgba(255,255,255,.2)}
  .crumb .now{color:var(--primary)}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.02em;color:var(--accent);
    border:1px solid rgba(70,224,255,.35);background:rgba(31,162,255,.1);
    padding:6px 14px;border-radius:999px;margin-bottom:20px;
  }
  .hero h1{
    font-size:clamp(32px,5vw,60px);
    font-weight:700;line-height:1.15;letter-spacing:0;
    color:#fff;
  }
  .hero h1 em{
    font-style:normal;
    background:linear-gradient(135deg,#1FA2FF 0%,#46E0FF 100%);
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{
    margin-top:22px;max-width:620px;color:var(--muted);font-size:17px;line-height:1.85;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
  .hero-badges{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:46px;max-width:620px;
  }
  .badge-stat{
    background:var(--glass);border:1px solid var(--line);border-radius:16px;
    padding:18px 20px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  }
  .badge-stat .num{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.2}
  .badge-stat .lbl{font-size:13px;color:var(--muted)}

  /* ---------- sections ---------- */
  .section{padding:104px 0}
  .section.tight{padding:76px 0}
  .section-alt{background:linear-gradient(180deg,rgba(12,20,36,.6) 0%,rgba(6,10,20,0) 100%)}
  .sec-head{max-width:760px;margin-bottom:48px}
  .sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
  .sec-tag{
    display:inline-block;font-size:12px;letter-spacing:.02em;color:var(--gold);
    border:1px solid rgba(232,178,74,.45);border-radius:8px;padding:4px 12px;margin-bottom:16px;
    clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  }
  .sec-head h2{font-size:clamp(24px,3.2vw,40px);font-weight:700;line-height:1.25;color:#fff}
  .sec-head p{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.8}

  /* 胶囊筛选条 */
  .filter-bar{
    display:flex;gap:10px;overflow-x:auto;padding:6px 0 12px;
    -webkit-overflow-scrolling:touch;scrollbar-width:thin;
  }
  .filter-bar::-webkit-scrollbar{height:4px}
  .filter-bar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:4px}
  .chip{
    flex:0 0 auto;font-size:13px;color:var(--muted);
    border:1px solid var(--line);background:rgba(255,255,255,.03);
    padding:7px 16px;border-radius:999px;cursor:pointer;
    transition:all .2s ease-out;
  }
  .chip:hover{color:#fff;border-color:rgba(31,162,255,.6)}
  .chip.is-active{color:#fff;background:rgba(31,162,255,.14);border-color:rgba(31,162,255,.75)}

  /* 卡片 */
  .card{
    background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    box-shadow:var(--card-shadow);
    padding:26px;
    transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .card:hover{transform:translateY(-4px);border-color:rgba(31,162,255,.45)}
  .card h3{font-size:20px;font-weight:600;color:#fff;margin-bottom:12px}
  .card p{color:var(--muted);font-size:15px}
  .card-cover{overflow:hidden;border-radius:12px;margin-bottom:20px;aspect-ratio:16/10}
  .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
  .card:hover .card-cover img{transform:scale(1.04)}
  .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}

  /* 规格表 */
  .table-wrap{
    overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
    background:rgba(12,20,36,.7);box-shadow:var(--card-shadow);
  }
  table.spec{width:100%;border-collapse:collapse;min-width:760px}
  table.spec th,table.spec td{
    padding:16px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line-soft);
    vertical-align:middle;
  }
  table.spec thead th{
    background:rgba(31,162,255,.1);color:#fff;font-weight:600;font-size:13px;
    letter-spacing:.02em;white-space:nowrap;
  }
  table.spec tbody tr:nth-child(odd){background:rgba(255,255,255,.02)}
  table.spec tbody tr:hover{background:rgba(255,255,255,.05)}
  table.spec td.name{color:#fff;font-weight:600;white-space:nowrap}
  table.spec td.dim{color:var(--muted)}
  .level-tag{
    display:inline-block;font-size:12px;letter-spacing:.02em;color:var(--gold);
    border:1px solid rgba(232,178,74,.5);border-radius:6px;padding:2px 9px;
  }
  .diff{display:inline-flex;align-items:center;gap:6px;font-size:13px}
  .dot{width:7px;height:7px;border-radius:50%;display:inline-block}
  .dot.low{background:var(--ok)}
  .dot.mid{background:var(--gold)}
  .dot.high{background:var(--warn)}

  /* 步骤轨 */
  .track{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:12px}
  .track::before{
    content:"";position:absolute;top:17px;left:6%;right:6%;height:2px;
    background:linear-gradient(90deg,rgba(31,162,255,.7),rgba(109,75,255,.35));
  }
  .step{position:relative;z-index:2;text-align:left;padding-top:52px}
  .step .node{
    position:absolute;top:6px;left:0;width:24px;height:24px;border-radius:50%;
    background:var(--primary);border:2px solid var(--gold);
    box-shadow:0 0 0 6px rgba(6,10,20,1),0 0 18px rgba(31,162,255,.7);
  }
  .step.is-current .node{
    background:var(--panel);border-color:var(--accent);
    animation:pulse 2.6s ease-in-out infinite;
  }
  @keyframes pulse{
    0%,100%{box-shadow:0 0 0 6px rgba(6,10,20,1),0 0 0 0 rgba(70,224,255,.5)}
    50%{box-shadow:0 0 0 6px rgba(6,10,20,1),0 0 0 12px rgba(70,224,255,0)}
  }
  .step h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:8px}
  .step p{font-size:14px;color:var(--muted)}
  .progress-line{margin-top:40px}
  .progress-bar{height:8px;border-radius:99px;background:rgba(255,255,255,.07);overflow:hidden}
  .progress-bar i{
    display:block;height:100%;width:68%;
    background:linear-gradient(135deg,#1FA2FF 0%,#46E0FF 100%);
    box-shadow:0 0 18px rgba(70,224,255,.6);
  }
  .progress-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:12px}

  /* 图文块 */
  .split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
  .figure{border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--card-shadow)}
  .figure img{width:100%;height:100%;object-fit:cover;border-radius:0}
  .check-list li{
    display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line-soft);color:var(--muted);font-size:15px;
  }
  .check-list li:last-child{border-bottom:0}
  .check-list b{color:#fff;font-weight:600}
  .mark{
    flex:0 0 auto;width:18px;height:18px;margin-top:5px;border-radius:5px;
    background:linear-gradient(135deg,#1FA2FF,#6D4BFF);
    display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:11px;font-weight:700;
  }

  /* 对比双栏 */
  .compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:rgba(12,20,36,.6)}
  .compare-col{padding:28px}
  .compare-col+.compare-col{border-left:1px solid var(--line)}
  .compare-col h3{font-size:17px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px}
  .compare-col.bad h3{color:var(--warn)}
  .compare-col.good h3{color:var(--ok)}
  .compare-col li{font-size:14.5px;color:var(--muted);padding:10px 0;border-bottom:1px dashed var(--line-soft)}
  .compare-col li:last-child{border-bottom:0}

  /* FAQ */
  .faq-item{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.035);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease-out}
  .faq-item:hover{border-color:rgba(31,162,255,.4)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:20px 24px;background:none;border:0;cursor:pointer;text-align:left;
    font-size:16.5px;font-weight:600;color:#fff;
  }
  .faq-q i{
    flex:0 0 auto;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
    display:inline-flex;align-items:center;justify-content:center;color:var(--primary);
    font-style:normal;font-size:16px;transition:transform .24s ease-out,background .2s ease-out;
  }
  .faq-item.is-open .faq-q i{transform:rotate(45deg);background:rgba(31,162,255,.16)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
  .faq-a p{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85}

  /* CTA + 表单 */
  .cta-band{
    position:relative;overflow:hidden;border:1px solid var(--line);border-radius:22px;
    background:linear-gradient(135deg,rgba(31,162,255,.14) 0%,rgba(109,75,255,.16) 100%),rgba(12,20,36,.85);
    padding:52px;box-shadow:var(--card-shadow);
  }
  .cta-band .grid-lines{
    position:absolute;inset:0;opacity:.6;
    background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
    background-size:48px 48px;
  }
  .cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
  .cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;color:#fff}
  .cta-inner p{margin-top:16px;color:var(--muted);font-size:15.5px}

  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .field{display:flex;flex-direction:column;gap:8px}
  .field.full{grid-column:1 / -1}
  .field label{font-size:13px;color:var(--muted)}
  .field input,.field select,.field textarea{
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    border-radius:12px;
    padding:13px 16px;
    font-size:14.5px;
    color:var(--text);
    transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
    width:100%;
  }
  .field textarea{min-height:104px;resize:vertical}
  .field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#9FB0C7 50%),linear-gradient(135deg,#9FB0C7 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
  .field input::placeholder,.field textarea::placeholder{color:var(--dim)}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,162,255,.25);background:rgba(255,255,255,.06);
  }
  .field.is-error input,.field.is-error select{border-color:var(--warn);box-shadow:0 0 0 3px rgba(255,122,89,.18)}
  .err-msg{font-size:12.5px;color:var(--warn);display:none}
  .field.is-error .err-msg{display:block}
  .form-note{font-size:12.5px;color:var(--dim);margin-top:14px}
  .form-ok{
    display:none;margin-top:16px;padding:14px 18px;border-radius:12px;font-size:14px;
    border:1px solid rgba(47,208,138,.4);background:rgba(47,208,138,.1);color:#9CF0C8;
  }
  .form-ok.show{display:block}

  /* footer */
  .site-footer{
    border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(12,20,36,.7) 0%,rgba(6,10,20,1) 60%);
    padding:72px 0 28px;margin-top:0;
  }
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
  .footer-brand .brand{margin-bottom:18px}
  .footer-brand p{color:var(--muted);font-size:14.5px;max-width:320px}
  .footer-brand .contact{margin-top:16px;font-size:13.5px;color:var(--dim)}
  .footer-brand .contact a{color:var(--primary)}
  .footer-col h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:18px;letter-spacing:.02em}
  .footer-col li{padding:7px 0}
  .footer-col li a{font-size:14px;color:var(--muted)}
  .footer-col li a:hover{color:var(--primary)}
  .footer-bottom{
    margin-top:52px;padding-top:22px;border-top:1px solid var(--line-soft);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--dim);
  }
  .footer-bottom a{color:var(--muted)}
  .footer-bottom a:hover{color:var(--primary)}

  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  }

  /* ---------- responsive ---------- */
  @media (max-width:1279px){
    .container-x{padding:0 28px}
  }
  @media (max-width:1023px){
    .container-x{padding:0 24px}
    .nav-desktop{display:none}
    .header-actions .btn-primary{display:none}
    .nav-toggle{display:flex}
    .section{padding:72px 0}
    .section.tight{padding:56px 0}
    .hero{padding:126px 0 68px}
    .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
    .split{grid-template-columns:1fr;gap:32px}
    .cta-inner{grid-template-columns:1fr;gap:34px}
    .cta-band{padding:36px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
    .track{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
    .track::before{display:none}
  }
  @media (max-width:767px){
    .container-x{padding:0 20px}
    .section{padding:56px 0}
    .hero{padding:112px 0 56px}
    .hero-badges{grid-template-columns:1fr;gap:12px;margin-top:34px}
    .grid-3,.grid-2{grid-template-columns:1fr}
    .compare{grid-template-columns:1fr}
    .compare-col+.compare-col{border-left:0;border-top:1px solid var(--line)}
    .form-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .cta-band{padding:28px 22px}
    .card{padding:22px}
    .faq-q{padding:18px 18px;font-size:15.5px}
    .faq-a p{padding:0 18px 18px}
    .track{grid-template-columns:1fr}
    .step{padding-top:46px}
    .footer-bottom{flex-direction:column}
  }
  @media (max-width:519px){
    .hero h1{font-size:clamp(28px,8vw,36px)}
    .btn{padding:12px 20px;font-size:14.5px}
    .hero-actions{flex-direction:column;align-items:stretch}
    .hero-actions .btn{width:100%}
  }

/* roulang page: category3 */
:root{
  --bg:#060A14;
  --panel:#0C1424;
  --primary:#1FA2FF;
  --accent:#46E0FF;
  --violet:#6D4BFF;
  --gold:#E8B24A;
  --text:#E8EEF7;
  --muted:#9FB0C7;
  --dim:#6B7C93;
  --glass:rgba(255,255,255,.05);
  --glass-line:rgba(255,255,255,.09);
  --radius:18px;
  --radius-sm:12px;
  --glow:0 8px 28px -6px rgba(31,162,255,.55);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,'PingFang SC','Microsoft YaHei','Noto Sans SC','Helvetica Neue',sans-serif;
  font-size:16px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;line-height:1.2}
p{margin:0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:'tnum' 1}

.container-x{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:70;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background 200ms ease-out,border-color 200ms ease-out,backdrop-filter 200ms ease-out;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.85);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--glass-line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:1px;font-size:22px;font-weight:800;line-height:1}
.brand-mark{color:var(--primary);text-shadow:0 0 18px rgba(31,162,255,.7)}
.brand-text{color:var(--text);font-weight:500}
.nav-desktop{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:10px;
  transition:color 200ms ease-out,background 200ms ease-out;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{
  content:'';
  position:absolute;
  left:12px;right:12px;bottom:1px;
  height:2px;border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(31,162,255,.85);
}
.header-actions{display:flex;align-items:center;gap:12px}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  border:1px solid transparent;
  padding:12px 26px;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform 200ms ease-out,box-shadow 200ms ease-out,background 200ms ease-out,border-color 200ms ease-out,color 200ms ease-out;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-primary{
  background:linear-gradient(135deg,#1FA2FF 0%,#6D4BFF 100%);
  color:#fff;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 34px -6px rgba(31,162,255,.85),0 0 0 1px rgba(70,224,255,.6);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 16px -6px rgba(31,162,255,.7)}
.btn-ghost{
  border-color:rgba(31,162,255,.55);
  background:rgba(31,162,255,.06);
  color:var(--accent);
}
.btn-ghost:hover{
  background:rgba(31,162,255,.14);
  border-color:var(--accent);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border:1px solid var(--glass-line);
  border-radius:12px;
  background:var(--glass);
}
.nav-toggle span{width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform 200ms ease-out,opacity 200ms ease-out}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.nav-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(6,10,20,.96);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  opacity:0;
  visibility:hidden;
  transition:opacity 240ms ease-out,visibility 240ms ease-out;
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.drawer-inner{
  height:100%;
  display:flex;
  flex-direction:column;
  padding:96px 24px 36px;
  overflow-y:auto;
}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:19px;
  font-weight:600;
  padding:16px 4px;
  border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--text);
}
.drawer-link::after{content:'›';color:var(--dim);font-size:20px}
.drawer-link.is-active{color:var(--accent)}
.drawer-cta{margin-top:auto;margin-top:32px}

/* ---------- hero ---------- */
.hero-band{
  position:relative;
  min-height:560px;
  display:flex;
  align-items:center;
  padding:150px 0 84px;
  overflow:hidden;
  background-image:linear-gradient(180deg,rgba(6,10,20,.72) 0%,rgba(6,10,20,.9) 55%,rgba(6,10,20,.98) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
}
.hero-band::before{
  content:'';
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.hero-band::after{
  content:'';
  position:absolute;
  width:620px;height:620px;
  right:-160px;top:-180px;
  background:radial-gradient(circle,rgba(109,75,255,.32) 0%,rgba(109,75,255,0) 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
  width:100%;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--accent);
  border:1px solid rgba(70,224,255,.32);
  background:rgba(31,162,255,.08);
  border-radius:999px;
  padding:6px 14px;
}
.hero-title{
  font-size:clamp(32px,5vw,56px);
  font-weight:700;
  line-height:1.15;
  margin:22px 0 14px;
}
.hero-sub{
  font-size:clamp(17px,2vw,21px);
  font-weight:600;
  color:var(--accent);
  margin-bottom:16px;
}
.hero-lead{
  font-size:16px;
  color:var(--muted);
  max-width:620px;
  line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

.float-card{
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
  border:1px solid var(--glass-line);
  border-radius:var(--radius);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 24px 60px -30px rgba(0,0,0,.95);
  padding:26px;
}
.float-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.float-title{font-size:15px;font-weight:600}
.float-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin:10px 0 18px}
.float-bar span{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(135deg,#E8B24A 0%,#46E0FF 100%)}
.float-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;border-top:1px solid rgba(255,255,255,.07);padding-top:16px}
.float-stats b{display:block;font-size:20px;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums}
.float-stats small{display:block;font-size:12.5px;color:var(--dim);margin-top:2px}

/* ---------- section ---------- */
.section{padding:104px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:48px}
.section-title{font-size:clamp(24px,3.2vw,40px);font-weight:700;line-height:1.25}
.section-desc{margin-top:16px;color:var(--muted);font-size:16px}
.section-kicker{
  display:inline-block;
  font-size:13px;
  letter-spacing:.16em;
  color:var(--primary);
  margin-bottom:14px;
  text-transform:uppercase;
}

/* ---------- chip bar ---------- */
.chip-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding-bottom:6px;
  margin-bottom:36px;
  scrollbar-width:none;
}
.chip-bar::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  font-size:13px;
  padding:7px 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
  color:var(--muted);
  transition:all 200ms ease-out;
}
.chip:hover{color:var(--text);border-color:rgba(255,255,255,.24)}
.chip.is-active{
  color:var(--accent);
  border-color:rgba(31,162,255,.6);
  background:rgba(31,162,255,.1);
}

/* ---------- cards ---------- */
.card{
  position:relative;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.022));
  border:1px solid var(--glass-line);
  border-radius:var(--radius);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 24px 60px -30px rgba(0,0,0,.9);
  transition:transform 200ms ease-out,border-color 200ms ease-out,box-shadow 200ms ease-out;
  overflow:hidden;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(70,224,255,.38);
  box-shadow:0 30px 70px -34px rgba(0,0,0,1),0 0 0 1px rgba(70,224,255,.18);
}
.card-body{padding:22px}
.card-media{
  overflow:hidden;
  border-radius:var(--radius-sm);
  aspect-ratio:16/10;
  background:var(--panel);
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.card-title{font-size:18px;font-weight:600;margin:14px 0 8px}
.card-text{font-size:14.5px;color:var(--muted);line-height:1.7}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12.5px;
  letter-spacing:.02em;
  padding:4px 11px;
  border-radius:999px;
  border:1px solid rgba(31,162,255,.3);
  background:rgba(31,162,255,.13);
  color:#BFE6FF;
}
.badge-gold{
  border-color:rgba(232,178,74,.45);
  background:rgba(232,178,74,.12);
  color:var(--gold);
}
.badge-line{
  border-color:rgba(255,255,255,.18);
  background:rgba(255,255,255,.04);
  color:var(--muted);
}

/* ---------- rarity ---------- */
.rarity-card{padding:26px;display:flex;flex-direction:column;gap:12px;height:100%}
.rarity-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.cut{
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.rarity-index{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;
  background:linear-gradient(135deg,rgba(31,162,255,.3),rgba(109,75,255,.32));
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.rarity-card.gold .rarity-index{
  background:linear-gradient(135deg,rgba(232,178,74,.34),rgba(109,75,255,.28));
  box-shadow:0 0 0 1px rgba(232,178,74,.55) inset;
  color:var(--gold);
}
.rarity-name{font-size:20px;font-weight:700}
.rarity-meta{font-size:13px;color:var(--dim)}
.rarity-list{display:flex;flex-direction:column;gap:8px;border-top:1px solid rgba(255,255,255,.07);padding-top:14px}
.rarity-list li{font-size:14.5px;color:var(--muted);padding-left:18px;position:relative}
.rarity-list li::before{
  content:'';
  position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:2px;
  background:var(--primary);
}
.rarity-card.gold .rarity-list li::before{background:var(--gold)}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px}
.tl-item{position:relative;padding-left:64px;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:'';
  position:absolute;left:15px;top:26px;bottom:0;
  width:1px;
  background:linear-gradient(180deg,rgba(31,162,255,.55),rgba(255,255,255,.06));
}
.tl-item:last-child::before{display:none}
.tl-dot{
  position:absolute;left:6px;top:6px;
  width:20px;height:20px;border-radius:50%;
  background:var(--panel);
  border:2px solid var(--primary);
  box-shadow:0 0 14px rgba(31,162,255,.55);
}
.tl-item.is-gold .tl-dot{border-color:var(--gold);box-shadow:0 0 14px rgba(232,178,74,.55)}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-stage{
  font-size:12.5px;
  letter-spacing:.06em;
  padding:4px 12px;
  color:var(--gold);
  background:rgba(232,178,74,.12);
  border:1px solid rgba(232,178,74,.45);
}
.tl-title{font-size:19px;font-weight:600}
.tl-text{font-size:15px;color:var(--muted);max-width:760px}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* ---------- reward grid ---------- */
.reward-large{
  grid-column:span 2;
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:0;
}
.reward-large .card-media{aspect-ratio:auto;height:100%;border-radius:0}
.reward-wide{grid-column:span 3;display:flex;align-items:center;gap:24px;padding:0}
.reward-wide .reward-wide-media{flex:0 0 220px;height:150px;overflow:hidden;border-radius:0}
.reward-wide .reward-wide-media img{width:100%;height:100%;object-fit:cover}
.reward-wide .reward-wide-body{padding:22px 24px 22px 0}

/* ---------- faq ---------- */
.faq-item{
  border:1px solid var(--glass-line);
  border-radius:14px;
  background:rgba(255,255,255,.035);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color 200ms ease-out,background 200ms ease-out;
}
.faq-item:hover{border-color:rgba(255,255,255,.18)}
.faq-item.is-open{border-color:rgba(31,162,255,.4);background:rgba(31,162,255,.06)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  font-size:16.5px;
  font-weight:600;
  text-align:left;
  color:var(--text);
}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.faq-plus{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  transition:transform 240ms ease-out;
}
.faq-plus::before,.faq-plus::after{
  content:'';
  position:absolute;
  background:var(--muted);
  border-radius:2px;
}
.faq-plus::before{left:0;right:0;top:10px;height:2px}
.faq-plus::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-item.is-open .faq-plus::before,.faq-item.is-open .faq-plus::after{background:var(--accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out}
.faq-a-inner{padding:0 22px 22px;font-size:15px;color:var(--muted);max-width:820px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;
  border:1px solid var(--glass-line);
  border-radius:24px;
  background:linear-gradient(135deg,rgba(31,162,255,.16) 0%,rgba(109,75,255,.18) 52%,rgba(6,10,20,.5) 100%);
  padding:52px;
  overflow:hidden;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:40px;
  align-items:start;
}
.cta-band::before{
  content:'';
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-title{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25}
.cta-text{margin-top:16px;color:var(--muted);font-size:15.5px;max-width:520px}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column}
.field-full{grid-column:span 2}
.field label{font-size:13px;color:var(--muted);margin-bottom:6px}
.input{
  width:100%;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:12px;
  padding:12px 14px;
  color:var(--text);
  font-size:15px;
  font-family:inherit;
  transition:border-color 200ms ease-out,box-shadow 200ms ease-out,background 200ms ease-out;
}
textarea.input{resize:vertical;min-height:96px;line-height:1.7}
.input::placeholder{color:var(--dim)}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,162,255,.22);background:rgba(255,255,255,.06)}
select.input option{background:#0C1424;color:#E8EEF7}
.field.has-error .input{border-color:#FF7A59;box-shadow:0 0 0 3px rgba(255,122,89,.18)}
.field-error{display:none;font-size:12.5px;color:#FF7A59;margin-top:6px}
.field.has-error .field-error{display:block}
.form-note{font-size:13px;color:var(--dim);margin-top:14px}
.form-success{
  display:none;
  margin-top:16px;
  font-size:14px;
  color:#2FD08A;
  border:1px solid rgba(47,208,138,.4);
  background:rgba(47,208,138,.08);
  border-radius:12px;
  padding:12px 16px;
}
.form-success.is-visible{display:block}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--glass-line);
  background:linear-gradient(180deg,rgba(12,20,36,.55) 0%,rgba(6,10,20,.98) 100%);
  padding:72px 0 0;
  margin-top:96px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.3fr 1fr;gap:40px}
.footer-brand .brand{font-size:20px}
.footer-brand p{color:var(--muted);font-size:14.5px;margin:16px 0 12px;max-width:330px;line-height:1.75}
.contact{font-size:13.5px;color:var(--dim)}
.contact a{color:var(--accent)}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--muted);transition:color 200ms ease-out}
.footer-col a:hover{color:var(--accent)}
.footer-col a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:56px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;
  color:var(--dim);
}
.footer-bottom a{color:var(--dim);text-decoration:underline;text-decoration-color:rgba(159,176,199,.4)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container-x{padding:0 24px}
  .nav-desktop{display:none}
  .nav-toggle{display:flex}
  .section{padding:76px 0}
  .section-tight{padding:56px 0}
  .section-head{margin-bottom:36px}
  .hero-band{min-height:auto;padding:130px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:28px}
  .reward-large{grid-column:span 2;grid-template-columns:1fr}
  .reward-large .card-media{aspect-ratio:16/10;border-radius:var(--radius-sm)}
  .reward-wide{grid-column:span 2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{margin-top:72px}
}
@media (max-width:639px){
  .container-x{padding:0 20px}
  .header-inner{height:64px}
  .brand{font-size:20px}
  .section{padding:52px 0}
  .section-tight{padding:44px 0}
  .hero-band{padding:112px 0 52px}
  .hero-title{margin:16px 0 12px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 100%}
  .float-stats{grid-template-columns:repeat(3,1fr);gap:8px}
  .float-stats b{font-size:17px}
  .card-body{padding:18px}
  .reward-large,.reward-wide{grid-column:span 1}
  .reward-wide{flex-direction:column;align-items:stretch;gap:0}
  .reward-wide .reward-wide-media{flex:none;height:170px}
  .reward-wide .reward-wide-body{padding:18px}
  .timeline .tl-item{padding-left:48px}
  .faq-q{font-size:15.5px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 18px;font-size:14.5px}
  .cta-band{padding:26px;border-radius:20px}
  .form-grid{grid-template-columns:1fr}
  .field-full{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:40px}
  .site-footer{margin-top:56px;padding-top:52px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .card:hover{transform:none}
}

/* roulang page: category4 */
:root{
  --bg:#060A14;
  --panel:#0C1424;
  --primary:#1FA2FF;
  --accent:#46E0FF;
  --violet:#6D4BFF;
  --gold:#E8B24A;
  --text:#E8EEF7;
  --muted:#9FB0C7;
  --dim:#6B7C93;
  --glass:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.09);
  --radius:18px;
  --radius-sm:12px;
  --glow:0 8px 28px -6px rgba(31,162,255,.55);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.15;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
time{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,162,255,.35)}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
@media (max-width:1023px){.container-x{padding:0 24px}}
@media (max-width:639px){.container-x{padding:0 20px}}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,backdrop-filter .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.85);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:baseline;gap:1px;font-size:22px;line-height:1;font-weight:700;letter-spacing:0}
.brand-mark{color:var(--primary);text-shadow:0 0 18px rgba(31,162,255,.65)}
.brand-text{color:var(--text);font-weight:400;letter-spacing:.06em}
.nav-desktop{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:10px 12px;font-size:14px;color:var(--muted);white-space:nowrap;border-radius:8px}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(31,162,255,.9);
}
.header-actions{display:flex;align-items:center;gap:12px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--violet));box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px -6px rgba(31,162,255,.8),0 0 0 1px rgba(70,224,255,.6)}
.btn-ghost{color:var(--primary);border-color:rgba(31,162,255,.55);background:transparent}
.btn-ghost:hover{background:rgba(31,162,255,.12);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}

/* ---------- Drawer ---------- */
.nav-drawer{
  position:fixed;inset:0;z-index:90;
  display:flex;flex-direction:column;
  padding:22px 20px 28px;
  background:rgba(6,10,20,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .28s ease-out,opacity .28s ease-out;
}
.nav-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center}
.drawer-nav{margin-top:18px;flex:1 1 auto;overflow-y:auto}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 4px;font-size:19px;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.drawer-link .arrow{color:var(--primary);font-size:16px}
.drawer-link.is-active{color:var(--primary)}
.drawer-cta{margin-top:24px;width:100%}

/* ---------- Page hero (极窄标题带) ---------- */
.page-hero{
  position:relative;
  padding:126px 0 0;
  background-image:linear-gradient(to bottom,rgba(6,10,20,.70),rgba(6,10,20,.96)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,162,255,.28),transparent 68%);
  pointer-events:none;
}
.page-hero .container-x{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--dim);margin-bottom:16px}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--primary)}
.hero-title{font-size:clamp(30px,4.2vw,52px);font-weight:700}
.hero-sub{margin-top:12px;font-size:clamp(15px,1.6vw,18px);color:var(--accent);letter-spacing:.02em}
.hero-lead{margin-top:16px;max-width:780px;font-size:15.5px;color:var(--muted);line-height:1.8}

.filter-bar{
  display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;
  margin-top:34px;padding-bottom:20px;
}
.filter-bar::-webkit-scrollbar{display:none}
.filter-pill{
  flex:0 0 auto;padding:7px 16px;font-size:13px;border-radius:999px;
  border:1px solid rgba(255,255,255,.1);color:var(--muted);background:rgba(255,255,255,.03);
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.filter-pill:hover{color:var(--text);border-color:rgba(255,255,255,.22)}
.filter-pill.is-on{color:#fff;border-color:rgba(31,162,255,.7);background:rgba(31,162,255,.14)}

/* ---------- Sections ---------- */
.section{padding:96px 0;position:relative}
.section-alt{background:#04070F;border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05)}
@media (max-width:1023px){.section{padding:72px 0}}
@media (max-width:639px){.section{padding:48px 0}}

.section-head{max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;font-size:12px;letter-spacing:.08em;
  color:var(--accent);background:rgba(70,224,255,.1);border:1px solid rgba(70,224,255,.25);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.section-title{margin-top:18px;font-size:clamp(24px,3.2vw,40px)}
.section-desc{margin-top:16px;color:var(--muted);font-size:15.5px;line-height:1.8}

/* ---------- Compare ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:44px}
.compare-col{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  box-shadow:0 24px 60px -30px rgba(0,0,0,.9);
}
.compare-col:hover{transform:translateY(-4px);border-color:rgba(31,162,255,.4)}
.compare-col figure{margin:0;position:relative;overflow:hidden}
.compare-col img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease-out}
.compare-col:hover img{transform:scale(1.04)}
.compare-topline{height:3px;background:linear-gradient(90deg,var(--primary),transparent)}
.compare-col.is-gold .compare-topline{background:linear-gradient(90deg,var(--gold),transparent)}
.compare-body{padding:28px}
.compare-body h3{font-size:22px;margin-bottom:6px}
.compare-tagline{font-size:13px;color:var(--dim);margin-bottom:16px}
.list-check li{
  display:flex;gap:12px;padding:11px 0;font-size:15px;color:var(--muted);
  border-bottom:1px dashed rgba(255,255,255,.07);
}
.list-check li:last-child{border-bottom:0}
.list-check li::before{
  content:"";flex:0 0 7px;width:7px;height:7px;margin-top:10px;
  background:var(--primary);box-shadow:0 0 8px rgba(31,162,255,.85);
}
.compare-col.is-gold .list-check li::before{background:var(--gold);box-shadow:0 0 8px rgba(232,178,74,.8)}

/* ---------- Badge wall ---------- */
.badge-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:44px}
.medal{
  position:relative;padding:22px 18px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.medal::before{content:"";position:absolute;left:0;top:0;width:36px;height:3px;background:linear-gradient(90deg,var(--gold),transparent)}
.medal:hover{transform:translateY(-4px);border-color:rgba(232,178,74,.5)}
.medal .mk{font-size:12px;letter-spacing:.08em;color:var(--dim)}
.medal .name{margin:10px 0 8px;font-size:17px;font-weight:600;line-height:1.35}
.medal .desc{font-size:13px;color:var(--muted);line-height:1.65}
.medal .tag{
  display:inline-block;margin-top:14px;padding:3px 10px;font-size:12px;letter-spacing:.02em;
  color:var(--gold);border:1px solid rgba(232,178,74,.55);border-radius:999px;background:rgba(232,178,74,.08);
}

/* ---------- Schedule ---------- */
.schedule{margin-top:40px;border-top:1px solid rgba(255,255,255,.06)}
.schedule li{
  display:grid;grid-template-columns:160px 132px 1fr auto;align-items:center;gap:18px;
  padding:20px 8px;border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .2s ease-out;
}
.schedule li:hover{background:rgba(255,255,255,.03)}
.sch-time{font-size:13.5px;color:var(--dim);font-variant-numeric:tabular-nums}
.sch-title{font-size:16px;font-weight:600}
.sch-desc{font-size:13.5px;color:var(--muted);margin-top:4px}
.sch-link{font-size:13.5px;color:var(--primary);white-space:nowrap}
.sch-link:hover{color:var(--accent)}
.pill{
  display:inline-block;padding:3px 11px;font-size:12px;border-radius:999px;
  letter-spacing:.02em;border:1px solid transparent;
}
.pill-blue{color:var(--accent);background:rgba(31,162,255,.14);border-color:rgba(31,162,255,.35)}
.pill-gold{color:var(--gold);background:rgba(232,178,74,.1);border-color:rgba(232,178,74,.4)}
.pill-green{color:#2FD08A;background:rgba(47,208,138,.1);border-color:rgba(47,208,138,.35)}
.pill-dim{color:var(--muted);background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12)}

/* ---------- Form ---------- */
.join-panel{
  margin-top:40px;padding:36px;border-radius:24px;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:0 24px 60px -30px rgba(0,0,0,.9);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}
.field{display:flex;flex-direction:column}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--muted);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field textarea{min-height:112px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#5A6A80}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,162,255,.22);
}
.field .err{display:none;margin-top:6px;font-size:12px;color:#FF7A59}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:26px}
.form-note{font-size:13px;color:var(--dim)}
.form-tip{
  display:none;align-items:center;gap:8px;margin-top:20px;padding:12px 16px;border-radius:12px;
  font-size:13.5px;color:#2FD08A;background:rgba(47,208,138,.08);border:1px solid rgba(47,208,138,.3);
}

/* ---------- FAQ ---------- */
.faq-list{margin-top:40px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:14px;background:var(--glass);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease-out;
}
.faq-item:hover{border-color:rgba(255,255,255,.18)}
.faq-item.is-open{border-color:rgba(31,162,255,.45)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q .plus{
  position:relative;flex:0 0 18px;width:18px;height:18px;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .24s ease-out,opacity .24s ease-out;
}
.faq-q .plus::before{width:14px;height:2px}
.faq-q .plus::after{width:2px;height:14px}
.faq-item.is-open .faq-q .plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease-out}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.8}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:44px;border-radius:24px;border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(31,162,255,.18),rgba(109,75,255,.14)),var(--panel);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(to right,rgba(0,0,0,.85),transparent 85%);
  -webkit-mask-image:linear-gradient(to right,rgba(0,0,0,.85),transparent 85%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.6vw,32px)}
.cta-band p{margin-top:12px;max-width:620px;color:var(--muted);font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{margin-top:0;padding:72px 0 0;background:#04070F;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin:16px 0 12px;max-width:330px;font-size:14px;color:var(--muted)}
.footer-brand .contact{font-size:13px;color:var(--dim)}
.footer-col h4{margin-bottom:16px;font-size:14px;letter-spacing:.06em;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:56px;padding:20px 0;border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;color:var(--dim);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-desktop{display:none}
  .nav-toggle{display:flex}
  .compare-grid{grid-template-columns:1fr}
  .badge-wall{grid-template-columns:repeat(2,1fr)}
  .schedule li{grid-template-columns:130px 1fr;grid-template-areas:"time pill" "title title" "link link";row-gap:8px}
  .sch-time{grid-area:time}
  .schedule li > .pill{grid-area:pill;justify-self:start}
  .sch-main{grid-area:title}
  .sch-link{grid-area:link}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
}
@media (max-width:639px){
  .badge-wall{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .join-panel{padding:24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-lead{font-size:15px}
  .compare-body{padding:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category5 */
:root{
    --bg:#060A14;
    --panel:#0C1424;
    --primary:#1FA2FF;
    --primary-2:#46E0FF;
    --violet:#6D4BFF;
    --gold:#E8B24A;
    --text:#E8EEF7;
    --muted:#9FB0C7;
    --dim:#6B7C93;
    --line:rgba(255,255,255,.09);
    --line-soft:rgba(255,255,255,.06);
    --glass:rgba(255,255,255,.05);
    --radius:18px;
    --radius-sm:12px;
    --shadow:0 24px 60px -30px rgba(0,0,0,.9);
    --glow:0 8px 28px -6px rgba(31,162,255,.55);
    --ease:200ms ease-out;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:
      radial-gradient(900px 520px at 12% -8%, rgba(109,75,255,.20), transparent 62%),
      radial-gradient(760px 480px at 92% 6%, rgba(31,162,255,.16), transparent 60%),
      var(--bg);
    color:var(--text);
    font-family:'Inter','PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  input,select,textarea{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--primary-2);outline-offset:2px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;}

  /* 容器 */
  .container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}
  @media (max-width:1023px){.container-x{padding:0 24px;}}
  @media (max-width:639px){.container-x{padding:0 20px;}}

  /* 顶部导航 */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:70;
    background:transparent;
    border-bottom:1px solid transparent;
    transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(6,10,20,.85);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom-color:var(--line);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
  .brand{display:inline-flex;align-items:baseline;gap:1px;font-size:22px;line-height:1;letter-spacing:0;flex:0 0 auto;}
  .brand-mark{color:var(--primary);font-weight:800;text-shadow:0 0 18px rgba(31,162,255,.65);}
  .brand-text{color:#fff;font-weight:400;}
  .nav-desktop{display:flex;align-items:center;gap:26px;}
  .nav-link{position:relative;font-size:15px;color:var(--muted);padding:6px 0;transition:color var(--ease);white-space:nowrap;}
  .nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--primary-2));opacity:0;transition:opacity var(--ease);}
  .nav-link:hover{color:var(--text);}
  .nav-link.is-active{color:#fff;}
  .nav-link.is-active::after{opacity:1;box-shadow:0 0 12px rgba(70,224,255,.7);}
  .header-actions{display:flex;align-items:center;gap:12px;}

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:999px;border:1px solid transparent;
    font-size:15px;font-weight:600;line-height:1;cursor:pointer;
    transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  }
  .btn-sm{padding:9px 18px;font-size:14px;}
  .btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--violet));
    color:#fff;box-shadow:var(--glow);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px -8px rgba(31,162,255,.8),0 0 0 1px rgba(70,224,255,.6);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:transparent;border-color:rgba(31,162,255,.55);color:#CFE9FF;}
  .btn-ghost:hover{background:rgba(31,162,255,.12);transform:translateY(-2px);border-color:rgba(70,224,255,.75);}
  .btn-text{padding:0;border:0;background:none;color:var(--primary-2);font-weight:600;}
  .btn-text span{display:inline-block;transition:transform var(--ease);}
  .btn-text:hover span{transform:translateX(8px);}
  .btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    background:rgba(255,255,255,.05);border:1px solid var(--line);
    flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  }
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease),opacity var(--ease);}
  .nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle.is-active span:nth-child(2){opacity:0;}
  .nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  /* 移动抽屉 */
  .nav-drawer{
    position:fixed;inset:0;z-index:65;display:none;
    background:rgba(6,10,20,.96);backdrop-filter:blur(10px);
  }
  .nav-drawer.is-open{display:block;}
  .drawer-panel{padding:104px 24px 32px;height:100%;display:flex;flex-direction:column;gap:6px;overflow-y:auto;}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:16px 4px;font-size:19px;font-weight:600;color:var(--muted);
    border-bottom:1px solid var(--line-soft);transition:color var(--ease);
  }
  .drawer-link:hover,.drawer-link.is-active{color:#fff;}
  .drawer-link.is-active{color:var(--primary-2);}
  .drawer-link i{font-style:normal;color:var(--dim);font-size:18px;}
  .drawer-cta{margin-top:auto;width:100%;padding:16px;font-size:16px;}

  /* Hero：全宽 + 底部斜切 */
  .c5-hero{
    position:relative;overflow:hidden;
    padding:180px 0 168px;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 78px),0 100%);
    background-color:#070C18;
  }
  .c5-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-3.webp');
    background-size:cover;background-position:center 32%;
    opacity:.42;
  }
  .c5-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,10,20,.55) 0%,rgba(6,10,20,.82) 52%,rgba(6,10,20,.97) 100%);
  }
  .hero-grid-tex{
    position:absolute;inset:0;z-index:1;pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
    background-size:48px 48px;
    mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
    -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  }
  .c5-hero .container-x{position:relative;z-index:2;}
  .glow-spot{position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none;z-index:1;}
  .glow-a{width:460px;height:460px;left:-120px;top:-90px;background:rgba(109,75,255,.34);}
  .glow-b{width:400px;height:400px;right:-100px;top:120px;background:rgba(31,162,255,.28);}
  .crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--dim);margin-bottom:22px;flex-wrap:wrap;}
  .crumb a:hover{color:var(--primary-2);}
  .crumb .sep{color:rgba(255,255,255,.22);}
  .crumb .cur{color:var(--primary-2);}
  .c5-hero h1{
    font-size:clamp(32px,5vw,60px);font-weight:700;line-height:1.15;letter-spacing:0;
    max-width:820px;margin-bottom:20px;
  }
  .c5-hero h1 em{font-style:normal;color:var(--primary-2);}
  .hero-lead{max-width:760px;font-size:16.5px;color:var(--muted);margin-bottom:32px;}
  .hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px;}
  .hero-stats{display:flex;flex-wrap:wrap;gap:14px;}
  .stat-chip{
    display:flex;align-items:center;gap:12px;padding:14px 20px;border-radius:14px;
    background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);
  }
  .stat-chip b{font-size:22px;font-weight:700;color:#fff;line-height:1;}
  .stat-chip span{font-size:13px;color:var(--muted);}

  /* 标签/徽章 */
  .tag{
    display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
    font-size:12.5px;letter-spacing:.02em;line-height:1.4;
    background:rgba(31,162,255,.14);border:1px solid rgba(31,162,255,.36);color:#CFE9FF;
  }
  .tag-gold{background:rgba(232,178,74,.12);border-color:rgba(232,178,74,.5);color:#F0C878;}
  .tag-cut{
    clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
    border-radius:0;padding:6px 14px;
  }

  /* 筛选胶囊条（区别于全局导航：更小、无 Logo、不吸顶） */
  .filter-bar{display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px;scrollbar-width:none;}
  .filter-bar::-webkit-scrollbar{display:none;}
  .filter-pill{
    flex:0 0 auto;padding:7px 16px;border-radius:999px;font-size:13.5px;color:var(--muted);
    background:rgba(255,255,255,.04);border:1px solid var(--line);cursor:pointer;
    transition:color var(--ease),border-color var(--ease),background var(--ease);
  }
  .filter-pill:hover{color:#fff;border-color:rgba(70,224,255,.45);}
  .filter-pill.is-on{color:#fff;background:rgba(31,162,255,.16);border-color:rgba(31,162,255,.6);}

  /* 板块 */
  .section{padding:96px 0;}
  .section-tight{padding:72px 0;}
  .eyebrow{font-size:13px;letter-spacing:.08em;color:var(--primary-2);margin-bottom:14px;display:block;}
  .sec-title{font-size:clamp(24px,3.2vw,40px);font-weight:700;line-height:1.2;letter-spacing:0;margin-bottom:14px;}
  .sec-desc{max-width:720px;color:var(--muted);font-size:15.5px;}
  .sec-head{margin-bottom:48px;}

  /* 卡片 */
  .g-card{
    background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow);
    transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  }
  .g-card:hover{transform:translateY(-4px);border-color:rgba(70,224,255,.35);}
  .pad{padding:26px;}
  .card-title{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:10px;}
  .card-text{font-size:14.5px;color:var(--muted);}
  .icon-box{
    width:46px;height:46px;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,rgba(31,162,255,.28),rgba(109,75,255,.28));
    border:1px solid rgba(70,224,255,.3);
    clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
    font-weight:700;color:#fff;margin-bottom:18px;font-size:15px;
  }
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
  .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}

  /* 步骤流程条 */
  .step-track{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;}
  .step-track::before{
    content:"";position:absolute;left:2%;right:2%;top:26px;height:1px;
    background:linear-gradient(90deg,rgba(31,162,255,.55),rgba(109,75,255,.4),rgba(255,255,255,.08));
  }
  .step-node{position:relative;padding-top:0;}
  .step-dot{
    width:52px;height:52px;display:flex;align-items:center;justify-content:center;
    font-weight:700;font-size:16px;color:#fff;margin-bottom:20px;
    background:linear-gradient(135deg,rgba(31,162,255,.9),rgba(109,75,255,.9));
    box-shadow:0 0 0 4px rgba(6,10,20,.9),0 0 22px -4px rgba(31,162,255,.7);
    clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  }
  .step-node:nth-child(5) .step-dot{background:linear-gradient(135deg,rgba(232,178,74,.95),rgba(31,162,255,.85));}
  .step-node h3{font-size:17px;font-weight:600;margin-bottom:8px;}
  .step-node p{font-size:14px;color:var(--muted);}
  .step-node .tag{margin-top:14px;}

  /* 左右分栏 */
  .split{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;}
  .split img{border-radius:var(--radius-sm);width:100%;height:100%;object-fit:cover;}
  .ratio-3-2{aspect-ratio:3/2;overflow:hidden;border-radius:var(--radius-sm);border:1px solid var(--line);}
  .ratio-3-2 img{transition:transform var(--ease);}
  .ratio-3-2:hover img{transform:scale(1.04);}
  .list-rows li{
    display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line-soft);
    transition:background var(--ease);
  }
  .list-rows li:last-child{border-bottom:0;}
  .list-rows b{display:block;font-size:16px;font-weight:600;margin-bottom:4px;}
  .list-rows span.tx{font-size:14px;color:var(--muted);}

  /* FAQ */
  .faq-wrap{display:grid;gap:14px;}
  .faq-item{
    background:var(--glass);border:1px solid var(--line);border-radius:16px;
    backdrop-filter:blur(14px);overflow:hidden;transition:border-color var(--ease),transform var(--ease);
  }
  .faq-item:hover{border-color:rgba(70,224,255,.3);}
  .faq-item.is-open{border-color:rgba(31,162,255,.55);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 24px;background:none;border:0;text-align:left;cursor:pointer;
    font-size:16.5px;font-weight:600;color:var(--text);
  }
  .faq-q .plus{
    flex:0 0 auto;width:26px;height:26px;position:relative;border-radius:8px;
    background:rgba(31,162,255,.16);border:1px solid rgba(31,162,255,.35);
  }
  .faq-q .plus::before,.faq-q .plus::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--primary-2);border-radius:2px;
    transform:translate(-50%,-50%);transition:transform var(--ease),opacity var(--ease);
  }
  .faq-q .plus::before{width:12px;height:2px;}
  .faq-q .plus::after{width:2px;height:12px;}
  .faq-item.is-open .faq-q .plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out;}
  .faq-a p{padding:0 24px 22px;font-size:14.8px;color:var(--muted);}

  /* 表单 */
  .form-panel{
    background:linear-gradient(135deg,rgba(31,162,255,.10),rgba(109,75,255,.10));
    border:1px solid var(--line);border-radius:22px;padding:36px;
    backdrop-filter:blur(14px);box-shadow:var(--shadow);
  }
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px;}
  .field{display:flex;flex-direction:column;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:13px;color:var(--muted);margin-bottom:8px;}
  .field label i{font-style:normal;color:var(--gold);}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 14px;border-radius:12px;font-size:15px;color:var(--text);
    background:rgba(255,255,255,.04);border:1px solid var(--line);
    transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
  }
  .field textarea{min-height:120px;resize:vertical;}
  .field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
  .field input::placeholder,.field textarea::placeholder{color:rgba(159,176,199,.55);}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,162,255,.22);background:rgba(255,255,255,.06);
  }
  .field input.is-error,.field select.is-error,.field textarea.is-error{border-color:#FF7A59;box-shadow:0 0 0 3px rgba(255,122,89,.18);}
  .form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:26px;}
  .form-msg{font-size:14px;color:var(--muted);}
  .form-msg.is-error{color:#FF7A59;}
  .form-msg.is-ok{color:#2FD08A;}

  /* CTA 带 */
  .cta-band{
    position:relative;overflow:hidden;border-radius:24px;border:1px solid var(--line);
    background:linear-gradient(135deg,rgba(31,162,255,.16),rgba(109,75,255,.20)),#0A1120;
    padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
    box-shadow:var(--shadow);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
    background-size:48px 48px;pointer-events:none;
  }
  .cta-band > *{position:relative;z-index:1;}
  .cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.25;margin-bottom:10px;}
  .cta-band p{color:var(--muted);font-size:15px;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

  /* 页脚 */
  .site-footer{margin-top:24px;background:#050810;border-top:1px solid var(--line-soft);padding:72px 0 0;}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
  .footer-brand p{font-size:14px;color:var(--muted);margin:18px 0 16px;max-width:320px;}
  .footer-brand .brand{font-size:20px;}
  .contact{font-size:13.5px;color:var(--dim);}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:18px;}
  .footer-col ul li a{display:block;font-size:14px;color:var(--muted);padding:6px 0;transition:color var(--ease),transform var(--ease);}
  .footer-col ul li a:hover{color:var(--primary-2);transform:translateX(3px);}
  .footer-bottom{
    margin-top:52px;border-top:1px solid var(--line-soft);padding:22px 0;
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:var(--dim);
  }
  .footer-bottom a{color:var(--muted);}
  .footer-bottom a:hover{color:var(--primary-2);}

  /* 响应式 */
  @media (max-width:1199px){
    .nav-desktop{gap:18px;}
    .nav-link{font-size:14px;}
  }
  @media (max-width:1023px){
    .nav-desktop{display:none;}
    .nav-toggle{display:flex;}
    .header-actions .btn-primary{display:none;}
    .section{padding:72px 0;}
    .c5-hero{padding:150px 0 140px;clip-path:polygon(0 0,100% 0,100% calc(100% - 56px),0 100%);}
    .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
    .step-track{grid-template-columns:repeat(2,1fr);gap:28px;}
    .step-track::before{display:none;}
    .split{grid-template-columns:1fr;gap:32px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .cta-band{padding:36px;}
    .form-panel{padding:28px;}
  }
  @media (max-width:639px){
    .grid-3,.grid-4,.grid-2{grid-template-columns:1fr;}
    .step-track{grid-template-columns:1fr;}
    .form-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .c5-hero{padding:132px 0 118px;}
    .section{padding:48px 0;}
    .section-tight{padding:40px 0;}
    .sec-head{margin-bottom:32px;}
    .faq-q{font-size:15.5px;padding:18px 18px;}
    .faq-a p{padding:0 18px 18px;}
    .pad{padding:22px;}
    .cta-band{padding:28px 22px;}
    .stat-chip{width:100%;}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  }